licentious /laɪˈsɛnʃəs/

• 1. 

  ADJ If you describe a person as licentious, you mean that they are very immoral, especially in their sexual behaviour. (尤指性行为)不道德的 [正式]

  例：

  ...alarming stories of licentious behaviour.

  ...那些放荡行为的骇人听闻的故事。

• 2. 

  licentiousness N-UNCOUNT

  例：

  ...moral licentiousness.

  ...道德败坏。